Improvement in adjusting devices for spinning-rings and their holders



E. TROWBRIDGE. Adjusting Device for Spinning Rings and their Holders.

No. 207,693. Patented Sept. 3,1878.

UNITED STATES PATENT OFEIGE.

CHARLES E. TROVBRIDGE, OF WHITINSVILLE, MASSACHUSETTS.

IMPROVEMENT IN ADIUSTING DEVICES FOR SPINNING-RINGS AND THEIR HOLDERS.

Specification forming part of Letters Patent No. 207,693, datedSeptember 3, 1878; application tiled June 22, 1878.

To all whom it may concern:

Be it known that I, CHAs. E. TROWBRIDGE, of Whitinsville, county ofWorcester, State of Massachusetts, have invented an Improvement inAdjusting Devices for Spinnin g-Rings and their Holders, of which thefollowing is a speciication This invention relates to improvements inrin g-spinnin g frames, and has special reference to means for holding`the ring or its holder in adj usted position within the ring-railopening, and concentric with the spindle.A

In this my invention I provide the lower end of the ring or holder shankwith a holding-down projection, with which engages an adjustablecramping device, located at the under side of the ring-rail, saidcramping` device being acted upon by a set-screw passed through the topof the ring-rail, which forces the end or ends of the cramping deviceagainst the holding-down projection, to keep the ring or its holder downfirmly upon the ring-rail.

The ends of the cramping device Vare inclined, so that by moving thesaid device laterally or toward either side of the ring-rail, the ringmay be adjusted by hand, and in such position the cramping device, actedupon by the set-screw, may be made to hold it.

Figure 1 represents an under-side view of a portion of a ringrail withmy improvements added; Fig. 2, a longitudinal section thereof on theline X X, Fig. l 5 Fig. 3, a section of a holder provided with myholding-down projection 5 and Fig. 4, a modilicd form of crampingdevice.

In the drawing, c represents the ring-rail, b the rings, and c thetravelers.

In Figs. l. and 2, the shanks of the rings b, which extend down throughthe openings in the ring-rails, are grooved or scored to form at or neartheir lower ends holding-down projections d, with which co-operate theends of the cramping device e, those e between adjacent rings havingboth their ends concaved or beveled, or suitably shaped to overlap theholding-down projection, while those c', at the outer sides ofthe ringsat the ends of the rail,

Y are so shaped at but one end.

The shank of the holder f, (shown in Fig. 3,) as-are the rings, isprovided with a holdingdown projection at its lower end, and theholder-at its upper end is shown as grasping a double-raced ring.

Into the top of the rail, between the adjacent rings, are bored holes toreceive the setscrews h, the ends of which project through the rail andimpinge against the top of the cramping devices to force them down uponthe holding-projections, (see Fig. 2,) they, by friction exerted betweenthem, acting to hold the ring in adj usted position upon the rail.

The rings or rings and holders are first adjusted by hand; then the endsof the cramping devices are'placed so as to rest upon thel projections,and the screws are turned to force the parts together.

In this way the screws `in the side ilanges of the rail, alwaysheretofore used with shanked rings or shanked holders, are dispensedwith, and the number of screws to hold the rings in place is lessened.

In the modification shown in Fig. 4, thc cramping device is so shapedand acted upon by the set-screw that, as the .depressed central portionof the cramping device is lifted, its outer ends are forced downward toen ga ge the holdingdown projections of either the shank of the ring orof the holder.

I claim- The combination, with thc ring rail and shanks, of two rings orholders,provided each with holding-down projections located below theunder surface of the rin g-rail, of a cramping device shaped at its endsto operate upon the projections of two shanks, and a screw to press thecramping device to hold the said shanks in adjusted position,substantially as described.

In testimony whereof' I have signed my name to this specification in thepresence of two subscribing witnesses.

CHARLES E. TROVBRID GE.

Witnesses WILLIAM H. WHITIN, EDW. WHITINe

